Using S-parameters successfully in time domain link simulations

Eye diagrams measured or simulated in time domain are widely used for characterization of electrical links. On the other hand frequency domain characterization by means of S-parameter measurements is gaining considerable ground. For direct comparison of eye diagrams, S-parameters have to be converted into time domain responses. In this paper we discuss criteria for the evaluation of the "goodness" of S-parameters for use in time domain link simulations.